CN106454366A

5G,4G,3G,2G

Title

METHOD FOR CODING VIDEO QUANTIZATION PARAMETER AND METHOD FOR DECODING VIDEO QUANTIZATION PARAMETER

Application Number:

CN201611108510

Publication Date:

22-02-2017

Current Assignee:

Family ID:

Application Date:

27-06-2012

Declaring Company:

Publication Country:

US

Priority Date:

28-06-2011

Title

METHOD FOR CODING VIDEO QUANTIZATION PARAMETER AND METHOD FOR DECODING VIDEO QUANTIZATION PARAMETER

Application Number:

CN201611108510

Family ID:

Publication Country:

US

Publication Date:

22-02-2017

Application Date:

27-06-2012

Priority Date:

28-06-2011

Current Assignee:

Declaring Company:

Abstract  Abstract

A video quantization parameter encoder includes: a prediction unit 11 for generating a predicted quantization parameter from a past reconstructed quantization parameter; a computing unit 12 for generating a delta quantization parameter from a quantization parameter and the predicted quantization parameter; and quantization parameter encoding means 13 for binary arithmetic encoding, by using a first context, a first bin indicating whether or not the delta quantization parameter is significant, encoding, by using no context, a sign bin indicating whether the delta quantization parameter is positive or negative, in the case where the delta quantization parameter is significant, and encoding, by using a context different from the first context, other bins indicating an absolute value of the delta quantization parameter, in the case where the delta quantization parameter is significant, wherein the quantization parameter encoding means 13 performs the binary arithmetic encoding, when the other bins are binary arithmetic encoded, using the same context for a predetermined bin and a bin or bins subsequent to the predetermined bin.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.